Help someone

took my car out today and after about 10 miles or so i noticed my oil pressure (escort cossie) on tickover was only just above the red
now when driving pressure was fine although it did seem that as i increased speed and revs the pressure seemed to fluctuate as it went from 1 bar say to the 5bar limit..
Any how got home changed the oil took the car round the block and the pressure still seemed low (lower than it has been).
Decided to put the car in the garage let it cool for 2 hours and started it up
, pressure still just above the red
Revd the car to 2k pressure rose and then just dropped to nothing .
Stopped the engine immediatly took off the oil hose on the turbo and i now have no oil flow whatsoever
Thank fuck i was not driving it
Thing is do pumps just pack up like that as its only 2 years old, standard 4wd pump with high pressure spring..
Anyone else had this happen?